How old is your stove :)

[Rob_the_Sparky]

Oil shouldn't do any harm as long as it is a tin wipe over but might smoke a bit on start-up but not sure that is an issue.  On the inside it will burn off very quickly.  Not convinced WD-40 will do any good though.  It evaporates quite rapidly so will leave next to nothing on the surface.  I see people use WD-40 for lots of stuff where it will have questionable benefits but it smells nice, cleans quite well and will not do any harm.

[neiln]

Yes I if I did the inside I'd try to keep it off the bricks, although I doubt they would suffer in the slightest I'd remove them and spray the body behind them.  The baffle in my stoves have a few rust spots so I'd do that maybe... That's about it.

[neiln]

True WD is very thin.  A bit of veg oil on a cloth wiped over the inside might be better.

[sandspider]

I can still see a patch on my stovetop where I wiped WD40 on the rusty bit (a few months ago now) but not the rest of the surface, so something seems to linger...

 

Don't know if oil might soak into the firebricks and weaken them, maybe?

[BowlandStoves]

On 11/07/2019 at 09:40, dumper said:

I have a county high top that’s 32 years old and still working

Wow 32 years is some going - you must have maintained it very well!